Hanna Instruments HI 95734 - Manual (Page 10)

10
The flashing digits indicate that:
1) the month can be set
2) the day can be set
“Storage”: this prompt appears for 1 second at the end of the
calibration procedure, to indicate that the calibration data has
been stored.
“Error”: the concentration of the calibration solution used is not
correct. Repeat the calibration procedure with the right standard
solution, and verify it is not expired. If the calibration procedure
fails again, contact your dealer or the nearest Hanna Customer
Service Center.
The blinking "BAT" indicates that the battery voltage is getting low
and the battery needs to be replaced.
This indicates that the battery is dead and must be replaced. Once
this indication is displayed, the meter will lock up. Change the
battery and restart.
“Configuration”: this indicates that the meter has lost its
configuration. Contact your dealer or the nearest Hanna Customer
Service Center.
CALIBRATION MODE MESSAGES
The date of the last calibration appears on the LCD each time the
calibration mode
is entered. If calibration is performed for the first
time, “F.CAL” appears.
This indicates that the factory calibration is selected.
15
• Select the parameter code for free chlorine
“734f” or total chlorine “734t” by holding
ZERO/SET (see page 14).
• Add to the cuvet 5 mL of HI 93734B-0 reagent
by means of the 5 mL syringe.
Note: in order to measure exactly 5 mL of
reagent with the syringe, follow the instructions
on page 12.
• Fill the cuvet up to the 10 mL mark with 5 mL
of unreacted sample, using the 3 mL plastic
pipette.
Note: rinse the 3 mL plastic pipette several
times with sample before adding it to the cuvet.
• Replace the cap and shake gently for some
seconds.
• Place the cuvet into the holder and ensure that
the notch on the cap is positioned securely into
the groove.
• Press ZERO/SET and “SIP” will blink on the
display.
• After a few seconds the display will show
“-0.0-”. The meter is now zeroed and ready for
measurement.
• Remove the cuvet.
MEASUREMENT PROCEDURE